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I was thinking the same as @EveHarrington , Dissociative Experiences Scale, as I haven't really seen a much shorter version of it around until I googled it now.
So maybe it's changed from 2015 I looked it up last, not sure.
It's basically still the same questions though, if you phrase never/sometimes/always in words or in percents doesn't matter that much.
I just took the Dissociative Experiences Scale and it was less than 30 questions. Its not for diagnosis, just to get an idea of whats going on for you.